Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.

Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.

Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.

Abstract: A lift actuator comprises a sun screw having a longitudinal axis and being restrained from rotation about the longitudinal axis of the sun screw, at least one planetary screw having a longitudinal axis and being in thread engagement with the sun screw, and a drive nut having a longitudinal axis coincident with the longitudinal axis of the sun screw and being in thread engagement with the planetary screw. The drive nut is mounted for rotation about the longitudinal axis of the drive nut but is restrained from translation along the longitudinal axis of the drive nut. When the drive nut is rotated by a rotational energy source, the drive nut drives the planetary screw to rotate and thereby translate axially relative to the drive nut, and the rotating planetary screw in turn causes the sun screw to translate axially relative to the rotating planetary screw.

Abstract: Apparatus for securing an automotive chassis component to an automotive body. The apparatus comprises a vertically movable pallet, and a spindle extension mounted on the pallet generally perpendicularly thereto. The spindle extension includes a shaft, a bolt socket on an upper end of the shaft, and a driver socket on a lower end of the shaft. The spindle extension includes a spring operable between the shaft and the pallet which functions to normally bias the spindle extension to the generally perpendicular orientation relative to the pallet.

Abstract: A method of manipulating an automotive vehicle frame having a longitudinal axis, a first generally upwardly directed side, and a second opposite generally downwardly directed side. The method comprises providing first and second robots, engaging a first end of the frame with the first robot, engaging a second end of the frame with the second robot, and rotating the frame about the longitudinal axis such that the second side is generally upwardly directed and the first side is generally downwardly directed.

Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.